This depends on what kind of plant you are referring to, and whether you mean in the nursery or in the field.
In the field, plants are measured in feet- in the US- by height and width.Trees can be measured by height and width, but are also measured by the diameter of the trunk at 4' high- known as the 'caliper' of the tree.
In the nursery, plants are usually sold by the size of the container- 1 qt, 1 gal, 3 gal., etc. Here again, sometimes you see shrubs sold by height, and trees by height and/or caliper.
There are several methods to measure photosynthesis in plants, including using a gas exchange system to measure oxygen production, using a spectrophotometer to measure chlorophyll levels, and using a fluorometer to measure the efficiency of photosystem II.
An auxanometer is an instrument used to measure the growth of plants.
It is a device used to measure the growth of plants.
Sugar is produced in plants by means of photosynthesis, a process that requires light. It is very logical to measure the amount of sugar in wheat plants, to see how much photosynthesis is taking place.
To measure sunlight for plants effectively, use a light meter to measure the intensity of light in the area where the plants are located. Ensure the light meter is calibrated properly and take measurements at different times of the day to account for changes in sunlight intensity. Adjust the placement of plants as needed to ensure they are receiving the optimal amount of sunlight for healthy growth.
A spectrophotometer can be used to measure the rate of photosynthesis by analyzing the absorption of light by chlorophyll in plants.
To effectively measure the growth of indoor plants using a scale, place the plant on the scale at regular intervals and record the weight. By tracking the weight changes over time, you can monitor the growth progress of your plants accurately.
You measure it by the square foot. The common 'board' is 32 sf. larger boards are also made in many plants.
Use of pesticides and burning of the affected plants are the two control measure of plant pest.
Line your dick up next to it and see how big it is.
One can accurately measure leaf temperature in plants using a specialized infrared thermometer. This device can be pointed at the leaf surface to obtain an accurate reading of the temperature without physically touching the plant.
A hygrometer or a tensiometer can be used to measure water uptake in plants. These instruments can monitor soil moisture levels and water potential to gauge how much water the plants are absorbing.